Raker gauge and jointer



Dec. 14 1 926.

1,611,113 H. GRANDMAISON RAKER GAUGE AND JOINTER Filed June 2/ 1926 \LEQL- I 25 BY W ATTORNEYS WITNESSES a y,

Patented pa. 14, 192e.@

;,nAKER-GAuen Application;filed luuefii' 6' invention i a use "by" "saw filers.andparticularlyto a tool designed mainly for filing raker teeth but useful also.

as; ajointer forithe levelin'giof cutter tee-t-h; 'Raker teeth areusually out approximately one-sixteenth shorter than the cutter teethil The general.object oftmy inventionyis. to

1 provide vgauge -mea'ns" for; use in filing ,the

i raker, teeth and, adj ustableto ,setgthegtool :for

7 Q: cutting the ir'akerl teeth shorter or; longer'.* a

- The nature of my invention andlitsiclis-v 1 tinguishingfeatures and advantages "will on the line 3-3,"Figure 1; t

, but .showin the use of in jointing thesaw.

clearly appearyas the 1 description proceeds, aiReference, istto be had. to the accompany-- ring :drawings :forming apart, of thisspeci- 'fication, it beingiunderstood that the draw-v ingsare merely; illustrative of one example otthemin enti iai V Flgure l is a sidefe'levation of a tool embodying Vmy invention, part;; ;bei ng broken;

away showing the device imposition on a sawifor the filing of a raker-tooth Figure 2is an elevation taken at the opposite side of the machine from that shown in Figure 1 and illustratingv the tool'tor use in ointingasawj c I igure 3 is a transverse vertical section Figure 4 is a view similar to Figure 3 a my improved tool In carrying out my invention in accprd ance withthe illustrated example, my improved tool is formed with a 'body 'adapt- 5 ed to be disposed against a side face ofa savv; said body having at the upper side thereof a recess 11. Atthe top'ofthe tool 5 is a plate 12 extending slightly over'the recess 11 and. at the opposite side of recess a top plate 13 ,is provided" having a downwardly curved end 14at the recess 11,.said end 14 having a slot 15 through whichthe teeth of the saw maypas'sQThe saw is" indicatedbytheletter A, a rakertoothby the letter a, and cutting teeth by the letter 6.

A swingable gauge element 16 here shown advantageously of L-shape is] secured by transverse groove 17 adjacent the curved end 14 of plate 13. The numera1'18 represents the laterally extending member of the L-shaped gauge 16, said member'having any enlargement. or projection 19 to overlap a raker tooth a. On the body 10 at that face provided with the gauge element 16, is in practice, suitable means against which the saw is laid to aline thesaw with the slot 15;

" Hememvwsbai r sne ai 'e tee; son-K; f

m imabersf 21.1 The screw 17 has a but 22 here m6. i dmalmembersfZO', are ,oifset from the face of the body 10 and? similarly lowergoflset menr;

shown. as having a" round- .-milledfhead .andj

provided at its inner I sideswith a fiange 23 to bear against the. body 10 for clamping the,

gauge element 16 tightly Iin---posit ion, 7

, In usin the 1 devicefin connection with ,a

raker tooth asl djthe body :10j'isEplacedover 7 the saw teethand;iplatesfil2,and 'l3 -resting, on "the tops of, cutting teeth b-"iand with the.

r aker tooth ,(ri) di sposed; at-the' recess {11 wi t-hi said rakergitooth extending, 1nore' .or less'into thefslot,'lfixasshowninlFigure1;.g The gauge-11 1 element i16 is-s'wung ifs'o thatYitcomes to bearing-against ithe "adjacentside edge of r therakertooth a at the ,angle fform ed by the lateral handle member 18 of said gauge element nd the n r sur ace f theproje t n i According to gauge element 16 is moved,git is obvious that the raker tooth may extend more or. less into the slot 1 5. If-said gauge 16 be in arelatively loWposit-ion, obviously the raker tooth may extend into the slot to a greater extent and (therefore "the upper edge" of a cutting member of the tooth will project above the curved portion 1a 'o'fplate 13' to, be filed ofi'. Inpractice, that cutting edge of the raker tooth adjacent to the curved so I portion 14 is filed down to the level of said 7 curved portion." If the gauge element 16,

1 is to occupy a higher, position,ithe n in order to raise it to said higher'position, obviously,

the rakerftooth a must take a position pro ject-ing with less of the tooth passed into the slot st) that more of a cutting-edge inustlbefiled off to meet the top surface of t-he 'curved portion 14. It. will be observed 1 that the curvature of said portion 14 correa I sponds in radius with that of'the curve of v a cutting edge of the'raker tooth. Thus; the" raising and lowering of the gauge 16 tooth will bebelow the plane of the points of the cutting teeth 6. With the gauge set to determine the extent :towhich the raker tooth a will be filed oil; the nut 22 is screwedtightly to hold said gauge e1ement'16 in adjusted position.

If the tool is-used as a jointer it is placed on the v upwardly projecting saw teeth as shown in Figure 2. The jointing operation 'determine the height' of the filed raker tooth 3 and hence the degree to'Ewhich the raker Y adapted illustrateck since, manifestly, the same 1 can be consid rably V varied without depaxme 'fa'tim-thef'spiri't 0'f the invention as defirietit in the appended claims; v

claim an inwardly cuyted" 'pofitiio n formed with 1 1 slot 11 1120 whiehn; mkntecthmay*be pass'ed',

and a gguger element mox'z'ab'ly nmunted ad- 06101 111e-class.-descri ed111611161111 d2 withfeces" d extending laterally to transectthe I plane of V the saw, 561(1- "me'nibervl'izwing a pertion dismount-ed an saj'dfbele tribe truinazbl'etdpo'siQ tic'n it at various migles;gaid gaugehaving -e almember adapted te 156211: against ay Taker ,tootlyp qsitipned insaid'slotj a lidfa; 'mlt p11 7 said bolt *adaptdftb held said gauge eTe 'y t9 be pesitioned adjacent saw teeth,' af top membersextendinglaterally and having a 40 pert- 0n directed downwardly and slotted for J 1 m .c. U 1.1. the entrancepi swlngable' gauge element movable to {Val-ions positiens te define the extent tu'wvh'ich t hje' riikelftooth niay pass thro g-h s'aid slot, and means to leek-594d sxix 'mga' ple; gauge "element 111' 'edlusted POSI- v titan;

a" body having 'rece'ss 'i i the topyimem'bers curved inner end ait'sa id recess' and fsaid" HENRY emNp tl-Al i .1. A 061 b1 the @1515 16161111151 memenig" 

